[LEDGirl]

Well it took a little longer than expected, but the 345W units are now ready. I just received our first two today, which will be used over our autoflower grow (will post tonight).

These units use the same 19" x 19" square panel as the 205W, except they pack a lot more punch into the same area. The 205W delivers approximately 34W per square foot, whereas the 345W delivers approximately 51W per square foot. The spectral ratios for the 345W are also slightly different than all of our other models, containing slightly less white and slightly more red. This is the only model that this configuration will be available on at this time.

These units draw 2.6 amps, and between 310-315W of actual power while using (345) 1W LED's. The units will cover a maximum area of 3' x 3', with a recommended area of 30" x 30". These units will be on our site very soon, retailing at $1150 shipped ($3.33 per watt).

[unclefishstick]

so this one is meant for the same footprint as the 205w model? sort of like upgrading from a 400 to a 600 w hps in the same area? sorry if this was covered elsewhere.

[LEDGirl]

Originally Posted by unclefishstick

so this one is meant for the same footprint as the 205w model? sort of like upgrading from a 400 to a 600 w hps in the same area? sorry if this was covered elsewhere.

That's about the easiest way of looking at it They both have the same casing, same footprint, and it's just like upgrading from a 400W HPS to a 600W HPS in the same area.

[unclefishstick]

sorry to have to use the old language to describe that...would the additional photosynthesis brought about by the increased intensity make adding CO2 and running a closed system a good strategy with this light? Assuming an ambient room temp of 78 would this unit create enough heat to bring a well constructed closed system say 4x4x6 up to a high enough temp to take advantage of both? My reading thus far tells me the LEDs themselves are effecient with a canopy temp in the low 80's.So my thinking is that it would be super easy to design a closed system with a minimal need for any cooling or venting around these lights.

[Okiedope]

damn, 4 of these would fit so nicely in my tent. might have to get a 3rd job though. looking forward to the test grow!

[LEDGirl]

Originally Posted by unclefishstick

sorry to have to use the old language to describe that...would the additional photosynthesis brought about by the increased intensity make adding CO2 and running a closed system a good strategy with this light? Assuming an ambient room temp of 78 would this unit create enough heat to bring a well constructed closed system say 4x4x6 up to a high enough temp to take advantage of both? My reading thus far tells me the LEDs themselves are effecient with a canopy temp in the low 80's.So my thinking is that it would be super easy to design a closed system with a minimal need for any cooling or venting around these lights.

I don't have our new light meter yet, but hopefully next week I'll be able to show you the raw numbers. The 345W unit emits about 1.75x the PAR lighting that our 205W unit would, allowing for plants to grow at a faster rate. If a single 345W were in a 4x4 tent, the temp would likely be around 80 degrees if the temp outside the tent was 72 degrees. I currently have 2 of them in our 4x4 tent, and the closed system works great. Ambient temps should be between 85-90 degrees with LEDs, anything less and it will stunt the growth rate. Heat has more to do with CO2 absorption than anything, so as long as that room is kept where we recommend, CO2 would certainly be beneficial.

[dwarfganja]

Cant wait for the test grow!!

[unclefishstick]

Hmm, this is very interesting...It seems that to some degree that designing a grow around one of these lights its almost foolish to apply the old methods of grow room construction.Really, as I think about it,it's cheaper to construct a closed co2 system with one of these lights than it would be to create a system around a standard HID setup,what with all the extra fans and air conditioning required to keep that type of system 'optimal'

[Txsbigtymer]

I like that new 345w that is Hottt. I will consider that for my moms here in the future. That would cover my Rain forest perfectly. I will be watching. Thank you for all your hard work LEDGirl. I appreciate you. I will be in touch..

Grow on and my prosper my friend..

[sweetherb]

Originally Posted by LEDGirl

I notice the lights are billed as 345w grow lights. However, they only draw a total of 310 Watts, and the fans must certainly account for at least 30w or 40w of those 310w. So is the actual light output around 270w? Not wanting to criticize, but isn't this false advertising? People think they are getting 345w of LED power, but are actually only getting 270 ish?